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Table 1 Characteristics of study population

From: Development of a risk score for low back pain in office workers - a cross-sectional study

Characteristics N (%) Mean ± SD
Gender (n = 397)   
   Male 65 (16.4)  
   Female 332 (83.6)  
Age(years) (n = 396)   41.5 ± 9.7
Body mass index (Kg/m 2 ) (n = 395)   23.9 ± 4.6
Level of education (n = 386)   
   Primary school 11 (2.8)  
   Secondary school 16 (4.1)  
   College 41 (10.6)  
   Bachelor's degree 209 (54.1)  
   Higher than Bachelor's degree 109 (28.2)  
Years of work experience (years) (n = 362)   14.9 ± 9.0
Weekly working days (days per week) (n = 363)   5.1 ± 0.6
Daily working hours (hours per day) (n = 372)   8.0 ± 1.3
Quality of life measured by the WHOQOL-BREF-Thai (n = 391)   25.7 ± 3.5
   Poor 4 (1.0)  
   Fair 225 (57.5)  
   Good 162 (41.4)  
Stress level measured by the Suanprung stress test (n = 391)   42.8 ± 17.3
   Low 62 (15.9)  
   Medium 131 (33.5)  
   High 149 (38.1)  
   Extremely high 49 (12.5)